It is currently believed that 3-6 months after trauma is the best time for cranial repair, during which time the pseudomembrane between the scalp and brain tissue is formed, making it easy to separate the repair and minimizing surgical trauma, but it is not necessary to perform the repair during this time, as cranial repair can be performed at any time thereafter. If the patient is not awake at this time or for other reasons the repair is not performed, the repair can be performed at any time thereafter. Of course the choice of material is an important part of cranial bone repair, at present, the clinical use of new polyether ether ketone PEEK material to do cranial bone repair material, the peek material is strong resistance to blowing, because it is embedded in the repair, a tight fit. The rays can be transmitted without metal artifacts. It has strong inertia, very little scalp irritation, and is not prone to produce rejection reactions. At the same time, the precautions after cranial bone repair must be understood, after the operation, avoid eating spicy and other foods, avoid drinking a lot of alcohol, pay attention to more exercise, and develop good living habits. In the case of cranial defects, timely repair surgery can help to enhance the patient’s self-confidence and quality of life, and hope to attract the attention of the patient’s family.